5206318657 has 4 divisors (see below), whose sum is σ = 5206528960. Its totient is φ = 5206108356.

The previous prime is 5206318633. The next prime is 5206318661. The reversal of 5206318657 is 7568136025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5206318657 - 2¹⁹ = 5205794369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5206318627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62157 + ... + 119482.

It is an arithmetic number, because the mean of its divisors is an integer number (1301632240).

Almost surely, 2^5206318657 is an apocalyptic number.

It is an amenable number.

5206318657 is a deficient number, since it is larger than the sum of its proper divisors (210303).

5206318657 is a wasteful number, since it uses less digits than its factorization.

5206318657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210302.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 5206318657 is about 72154.8242115522. The cubic root of 5206318657 is about 1733.1796532840.

The spelling of 5206318657 in words is "five billion, two hundred six million, three hundred eighteen thousand, six hundred fifty-seven".